Tutorial by Examples: io

public class Person { private final String salutation; private final String firstName; private final String middleName; private final String lastName; private final String suffix; private final Address address; private final boolean isFemale; private final boolean isEmployed; private final ...

The most basic way to structure your code using spring boot for good automatic package scanning is using @SpringBootApplication annotation. This annotation provide in itself 3 other annotations that helps with automatic scanning: @SpringBootConfiguration, @EnableAutoConfiguration, @ComponentScan (mo...

Spring boot is based on a lot of pre-made auto-configuration parent projects. You should already be familiar with spring boot starter projects. You can easily create your own starter project by doing the following easy steps: Create some @Configuration classes to define default beans. You should...

CSS properties which add visual decorations but are not supported can be replaced with image tag. For example: border-radius is not supported in Yahoo! Mail, Outlook 2007/10/13 +, Outlook 03/Express/Mail & Android 4 (Gmail) + To work around this we can add images with border radius in them i.e...

Calling C code from Go package main /* // Everything in comments above the import "C" is C code and will be compiles with the GCC. // Make sure you have a GCC installed. int addInC(int a, int b) { return a + b; } */ import "C" import "fmt" func ma...

/** Adds user to the list of poople which are assigned the tasks. - Parameter name: The name to add - Returns: A boolean value (true/false) to tell if user is added successfully to the people list. */ func addMeToList(name: String) -> Bool { // Do something.... ...

To use the example above on a blade template to hide content from the user, you would typically do something like this: @can('view-content', $content) <! -- content here --> @endcan To completely prevent navigation to the content, you can do the following in your controller: if(Gate::a...

Via The User model The Laravel User model contains two methods that help with authorisations using Policies; can and can't. These two can be used to determine if a user has authorisation or not on a model respectively. To check if a user can view a content or not, you can do the following: if($us...

These inspections are extremely useful for preventing NullPointerExceptions. By default they are disabled. You can find these inspections in Inspections preferences: Java | Probable bugs | Constant conditions & exceptions and @NotNull/@Nullable problems. There you can also configure your annotat...

(From this answer) The example below adds an enumerated type to a postgres database. First, edit the migration file (created with mix ecto.gen.migration): def up do # creating the enumerated type execute("CREATE TYPE post_status AS ENUM ('published', 'editing')") # creating a...

Install Xcode from the App Store. Install the Xcode developer tools > xcode-select --install This will provide basic command line tools such as gcc and make Install Mac Ports https://www.macports.org/install.php The OSX Sierra install package will provide an open-source method of ...

The Problem You have a set of things to do (activities). Each activity has a start time and a end time. You aren't allowed to perform more than one activity at a time. Your task is to find a way to perform the maximum number of activities. For example, suppose you have a selection of classes to ch...

Dictionary consists of key-value pairs.It is enclosed by curly braces {} and values can be assigned and accessed using square brackets[]. dic={'name':'red','age':10} print(dic) #will output all the key-value pairs. {'name':'red','age':10} print(dic['name']) #will output only value with 'nam...

Generally tf.gather gives you access to elements in the first dimension of a tensor (e.g. rows 1, 3 and 7 in a 2-dimensional Tensor). If you need access to any other dimension than the first one, or if you don't need the whole slice, but e.g. only the 5th entry in the 1st, 3rd and 7th row, you are b...

Build the documentation for existent doc source with specified source doc directory and where to be built like following: sphinx-build -b html source build

This example is used in specifying options that might not be included in a database of available housing and its attendant amenities. It builds on the previous example, with some differences: Two procedures are no longer necessary for a single combo box, done by combining the code into a single ...

More information needed. A cryptographic hash function is a member of a class of functions with three vital properties; consistency, uniqueness, and irreversibility. Consistency: Given the same data, a hash function will always return the same value. That is, if X = Y, f(x) will always equal f(y) ...

navigator.mediaDevices is the common method adapted in Chrome and FF to getUserMedia as of now. A promised based call back which returns local stream on success navigator.mediaDevices.getUserMedia({ audio: true, video: true }) .then(stream => { // attach this stream to window obje...

GTKWave is a fully feature graphical viewing package that supports several graphical data storage standards, but it also happens to support VCD, which is the format that vvp will output. So, to pick up GTKWave, you have a couple options Goto http://gtkwave.sourceforge.net/gtkwave.zip and downloa...

One time definition of a generic base class with recursive type specifier. Each node has one parent and multiple children. /// <summary> /// Generic base class for a tree structure /// </summary> /// <typeparam name="T">The node type of the tree</typeparam> pub...